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Originally Posted by redchigh View Post
In a study on plant growth under different types of fluorescent lighting, plants grew best under a mixture of full spectrum and cool white. Second best was under cool white. Third was full spectrum. What this says to me is that cool white obvious is good plant light, but adding a touch of the warmer red does make a slight difference.
You might wonder then why I recommend full spectrum alone over single tube tanks; simply, appearance. Cool white is "cool" to the eye, and while my personal preference tends to cooler white than warmer, I like the fish and plant colours to be natural which they are if there is sufficient green (and red) in the mix. Over dual-tube tanks we can have the best, which is why I always suggest dual-tube T8 lighting over single tube T5; it leaves you this option.
Byron Hosking, BMus, MA
Vancouver, BC, Canada
The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]
Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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